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A 50mw adiabatic compressed air energy storage method

A compressed air energy storage, 50MW technology, applied in steam engine installations, machines/engines, mechanical equipment, etc., can solve the problems of low system efficiency and low heat utilization rate, achieve environmental friendliness, improve controllability and stability, Improve technical feasibility and operability

Active Publication Date: 2018-12-11
中盐华能储能科技有限公司
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Problems solved by technology

[0006] The purpose of the present invention is to provide a 50MW adiabatic compressed air energy storage method to solve the problems of low heat utilization rate and low system efficiency of the compressed air energy storage method in the prior art

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  • A 50mw adiabatic compressed air energy storage method

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Embodiment Construction

[0034] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0036] An embodiment of t...

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Abstract

The invention relates to the technical field of compressed air energy storage, and particularly discloses a 50 MW adiabatic compressed air energy storage method. The method is characterized in that during energy storage, air is compressed and stored into a air storage chamber by using a first-stage air compressor, a second-stage air compressor and a third-stage air compressor, and meanwhile, the compression heat generated in the process is collected; and during energy release, the compressed air discharged from the air storage chamber is subjected to heat recovery and heating for two times andthen is input to a first-stage turbine expansion machine to do work through expansion, and the air outputted by the first-stage turbine expansion machine is subjected to heat recovery and heating again and then is input to a second-stage turbine expansion machine to do work through expansion, wherein the heat generated during the heat recovery is derived from the compression heat collected in theenergy storage process. According to the 50 MW adiabatic compressed air energy storage method, peak regulation of a power grid is facilitated, and absorption of renewable energy power is promoted; and meanwhile, the heat grade and the heat utilization rate of a energy storage system are improved, and by applying the energy storage method, the electric energy conversion efficiency of the energy storage system can reach more than 60%.

Description

technical field [0001] The invention relates to the technical field of compressed air energy storage, in particular to a 50MW adiabatic compressed air energy storage method. Background technique [0002] Energy storage technology, especially the storage of electric energy, is of great significance to the optimization and regulation of energy systems. Energy storage systems are an effective system to solve the instability of renewable energy. Power energy storage technology is currently an important means to adjust the peak and valley of the power grid and improve the economy and stability of the power system. Among the various existing electric energy storage technologies, compressed air energy storage is widely used due to its advantages of low construction and operating costs and good economy. [0003] Compressed Air Energy Storage (CAES for short) is an energy storage system based on gas turbine technology. Compressed air energy storage technology uses air as an energy ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K7/02F01D15/10
CPCF01D15/10F01K7/02
Inventor 梅生伟薛小代陈来军卢强
Owner 中盐华能储能科技有限公司
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